I had an old fridge in my basement with an ice maker and water dispenser. I want to hook it up to my bathroom sink. I have a bunch of spare 1/4" fittings in my toolbox. The only problem is my compression fitting that came with the fridge is this silver metal. My compression fittings are all brass. Previously that silverish compression fitting was connected to a copper line with a brass compression nut around it, and it worked just fine. I just want to make sure that I don't have a risk of a flood from bimetallic corrosion in the distant future.